var fDesc=new Array(); fDesc[0] = "GRASP Student Edition is a program that allows you to define single and dual reflector systems with parabolic, hyperbolic, ellipsoidal and flat surface shapes. You can perform PO and/or GO-UGTD analysis of single and dual reflectors, display pattern cuts and 2-dimensional grids and define reflector rims as circles, ellipses or rectangles."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }